122338649 has 2 divisors, whose sum is σ = 122338650. Its totient is φ = 122338648.

The previous prime is 122338637. The next prime is 122338661. The reversal of 122338649 is 946833221.

It is a balanced prime because it is at equal distance from previous prime (122338637) and next prime (122338661).

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 1338649 = 11000^2 + 1157^2 .

It is an emirp because it is prime and its reverse (946833221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122338649 - 2⁸ = 122338393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (122338669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61169324 + 61169325.

It is an arithmetic number, because the mean of its divisors is an integer number (61169325).

Almost surely, 2^122338649 is an apocalyptic number.

It is an amenable number.

122338649 is a deficient number, since it is larger than the sum of its proper divisors (1).

122338649 is an equidigital number, since it uses as much as digits as its factorization.

122338649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 38.

The square root of 122338649 is about 11060.6803136154. The cubic root of 122338649 is about 496.4260465814.

The spelling of 122338649 in words is "one hundred twenty-two million, three hundred thirty-eight thousand, six hundred forty-nine".